Improvement in fire-place grates



MILES S. WATKINS, OF MEMPHIS, TENNESSEE.

IMPROVEMENT IN FIRE-PLACE GRA-TES.

Specification forming part of Letters Patent No. 120,917, dated November 14, 1871.

To all whom it may concern:

Be it known that I, MILES S. WATKlNs, of Memphis, in the county of Shelby and State of Tennessee, have invented a certain Improvement in Fire-Places and GOaLGrateS; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the aimexed drawing making a part of this specification, in which- Figure 1 represents the front view of tire-place and coal-grate.

A represents a cast-iron frame of any usual form. B represents a cast-iron box or air-chamber in the back of the fire-place, made air-tight, with four holes in it at the elevation of the cross-bar C. C represents the lower cross-bar of a coal-grate, made broader than usual, with four holes in it corresponding with the four holes in thev air-chamber B. a a. a a represent four cast-iron tubes, passing through the four holes in the cross-bar C and extending back and fastened into the four holes in the air-chamber B. b represents another cast-iron tube, which is fastened at its lower extremity into a hole in the top of the air-chamber B and extends thence up the fireplace to a point opposite c, Where it is bent, and passes through the top of the castiron frame A into the apartment or room to be heated. h represents another cast -iron tube, fastened into another hole in the top of the airchamber B, to which may be attached a sheetiron tube, and extended up the chimney into an apartment or room above.

Fig. 2 represents a sectional side view of fireplace and coal-grate.

A, B, and C represent, respectively, as in Fig. 1, the cast-iron frame, the airchamber in the back of the iire-place, and the lower cross-bar of the coal-grate. a represents, as in Fig. l, one of the cast-iron tubes which pass through the cross-bar C and are fastened into the air-chamber B. b represents, as in Fig. l, the cast-iron tube which is fastened at its lower extremity into the top of the air-chamber B, and extends thence up the fireplace and passes through the cast-iron frameAinto the room to be heated. d represents a cast-iron tube fastened into a hole in the air-chamber B on its opposite side, at or near the bottom. c represents a cast-iron tube fastened into a hole in the air-chamber B on its opposite side, at or near thetop.- These two tubes d and c may be dispensed with, except where the fire-place is between two rooms and it is desired to heat both rooms by the same iii-e. The sheet-iron tube to be attached to the castiron tube h may also be dispensed with when it is not desired to heat a room above. 'Ihe casi'- iron tubes represented by a may be any numb-r desired. To the ends of the tubes b and c, and also to the end of the sheet-iron tube to be fasi ened to the tube h and extended into a room above, are to be attached one ofthe contrivanees now in use for that purpose to regulate or e11- tirely cut off the passage of air through these tubes.

rEhe advantages which I claim for my invention over the fire-places and coal-grates now in use are, iirst, the air in the tubes@ and in the airchamber B, becoming heated, rises and passes through the tube b back into the room to be heated, thus causing a continuous circulation of heated air in the room, by which every portion of it is heated to a uniform temperature; second, when the iire-place is between tivo rooms the tubes d and c may be extended into the adjoining room, and by closing the tube b and opening,` the tube c a circulation of heated air may be kept up in that room, and thus both rooms be heated by the same fire; also, in the same man ner, the room above may be heated; third, the temperature of the different rooms maybe regulated as desired by the contrivances on the tubes through which the heated air passes; and fourth, by the continuous circulation of heated air in the rooms .they may be heated with much less fuel than by radiation alone.

What I claim as my invention, and desire to secure by Letters Patent of the United States, is-

The tubes passing through the cross-bar ofthe grate and extending back into the air-chamber in the back of the fire-place, the air-chamber and the tubes passing thence into different apart ments, constructed substantially as described, and for the purposes set forth.

In testimony whereof I have subscribed my name to this specilication in the presence of two witnesses.

M. S. WATKINS.

Witnesses:

Jmmrs W. AvERY,

LEs Briones. (154) 

